First, you buy a sufficient number of I beams to support the house while it is sitting on nothing but the I beams. Also, buy sufficient cribbing timber and jacks.
Then, you slide the beams into place under the house, this usually involves digging trenches.
Then, you bring all the beams up into place, and weld or bolt them together with other beams outside of the house.
Then, you build foundations for all jacking positions, and install the jacks into place, screw jacks, not hydraulic.
Then, you bring up all jacks to strain on the frame.
Then, you sever all sewer and water connections, as well as electrical connections that might hang the lift up.
Then, with at least 2 helpers, who know what they are doing, you begin taking the jacks up equally, so the walls don't crack.
As the lifting beams rise, make sure to keep them cribbed, just in case of jack failure.
Double check to make sure the house is free of all hangups, you will have missed at least one.
Initial lifting should bring the house up to level, before any elevating is done.
Jack the house to sufficient height, and crib in place.
Begin foundation work and complete.
Reverse process to let house down onto new foundation.
If you're lucky, nothing broke off, cracked, or collapsed.
The BIBLE on the subject of house lifting and hauling was written by Gene Tuxill, after he got tired of making insurance companys rich and quit moving houses.
If you have about $50,000 you can substitute air bags for the jacks, and eliminate one of the helpers.
